Etymology and distribution of 九十.

Kujuu 【九十】^{レベル3
About 50}  The Japanese surnames etymology dictionary.

肥沼 Koinuma reference.

Kutou 【九十】^{レベル3
About 50}  The Japanese surnames etymology dictionary.

Saitama-ken , Gunma-ken .

① Gunma-ken Takasaki-shi Yoshii Town Kogure birth. A place name with a record since the Edo period. Gunma-ken Takasaki-shi There is a tradition in Takahama-cho. Gunma-ken Oota-shi Tells Hosoya Town that it was called during the Kamakura period.

② Gunma-ken Maebashi-shi Fujimi-machi Origin of Kogure. A place name with a record since the Edo period. Gunma-ken Agatsuma-gun Nakanojou-machi There is a tradition in Ise-cho.

③ variant of 木暮 . Gunma-ken Isesaki-shi Tradition in Miyamachi.